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/* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <mach/dal_axi.h>
/* The AXI device ID */
#define DALDEVICEID_AXI 0x02000053
#define DALRPC_PORT_NAME "DAL00"
enum {
DALRPC_AXI_ALLOCATE = DALDEVICE_FIRST_DEVICE_API_IDX + 1,
DALRPC_AXI_FREE = DALDEVICE_FIRST_DEVICE_API_IDX + 2,
DALRPC_AXI_CONFIGURE_BRIDGE = DALDEVICE_FIRST_DEVICE_API_IDX + 11
};
enum {
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_SYNC_MODE = 14,
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_ASYNC_MODE,
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_ISOSYNC_MODE,
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_DEBUG_EN,
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_DEBUG_DIS,
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_SYNC_MODE,
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_ASYNC_MODE,
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_ISOSYNC_MODE,
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_DEBUG_EN,
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_DEBUG_DIS,
/* 7x27(A) Graphics Subsystem Bridge Configuration */
DAL_AXI_BRIDGE_CFG_GRPSS_XBAR_SYNC_MODE = 58,
DAL_AXI_BRIDGE_CFG_GRPSS_XBAR_ASYNC_MODE = 59,
DAL_AXI_BRIDGE_CFG_GRPSS_XBAR_ISOSYNC_MODE = 60
};
static void *cam_dev_handle;
static int __axi_free(int mode)
{
int rc = 0;
if (!cam_dev_handle)
return rc;
rc = dalrpc_fcn_0(DALRPC_AXI_FREE, cam_dev_handle, mode);
if (rc) {
printk(KERN_ERR "%s: AXI bus device (%d) failed to be configured\n",
__func__, rc);
goto fail_dal_fcn_0;
}
/* close device handle */
rc = daldevice_detach(cam_dev_handle);
if (rc) {
printk(KERN_ERR "%s: failed to detach AXI bus device (%d)\n",
__func__, rc);
goto fail_dal_attach_detach;
}
cam_dev_handle = NULL;
return 0;
fail_dal_fcn_0:
(void)daldevice_detach(cam_dev_handle);
cam_dev_handle = NULL;
fail_dal_attach_detach:
return rc;
}
static int __axi_allocate(int mode)
{
int rc;
/* get device handle */
rc = daldevice_attach(DALDEVICEID_AXI, DALRPC_PORT_NAME,
DALRPC_DEST_MODEM, &cam_dev_handle);
if (rc) {
printk(KERN_ERR "%s: failed to attach AXI bus device (%d)\n",
__func__, rc);
goto fail_dal_attach_detach;
}
rc = dalrpc_fcn_0(DALRPC_AXI_ALLOCATE, cam_dev_handle, mode);
if (rc) {
printk(KERN_ERR "%s: AXI bus device (%d) failed to be configured\n",
__func__, rc);
goto fail_dal_fcn_0;
}
return 0;
fail_dal_fcn_0:
(void)daldevice_detach(cam_dev_handle);
cam_dev_handle = NULL;
fail_dal_attach_detach:
return rc;
}
static int axi_configure_bridge_grfx_sync_mode(int bridge_mode)
{
int rc;
void *dev_handle;
/* get device handle */
rc = daldevice_attach(
DALDEVICEID_AXI, DALRPC_PORT_NAME,
DALRPC_DEST_MODEM, &dev_handle
);
if (rc) {
printk(KERN_ERR "%s: failed to attach AXI bus device (%d)\n",
__func__, rc);
goto fail_dal_attach_detach;
}
/* call ConfigureBridge */
rc = dalrpc_fcn_0(
DALRPC_AXI_CONFIGURE_BRIDGE, dev_handle,
bridge_mode
);
if (rc) {
printk(KERN_ERR "%s: AXI bus device (%d) failed to be configured\n",
__func__, rc);
goto fail_dal_fcn_0;
}
/* close device handle */
rc = daldevice_detach(dev_handle);
if (rc) {
printk(KERN_ERR "%s: failed to detach AXI bus device (%d)\n",
__func__, rc);
goto fail_dal_attach_detach;
}
return 0;
fail_dal_fcn_0:
(void)daldevice_detach(dev_handle);
fail_dal_attach_detach:
return rc;
}
int axi_free(mode)
{
return __axi_free(mode);
}
int axi_allocate(mode)
{
return __axi_allocate(mode);
}
int set_grp2d_async(void)
{
return axi_configure_bridge_grfx_sync_mode(
DAL_AXI_BRIDGE_CFG_CGR_SS_2DGRP_ASYNC_MODE);
}
int set_grp3d_async(void)
{
return axi_configure_bridge_grfx_sync_mode(
DAL_AXI_BRIDGE_CFG_CGR_SS_3DGRP_ASYNC_MODE);
}
int set_grp_xbar_async(void)
{ return axi_configure_bridge_grfx_sync_mode(
DAL_AXI_BRIDGE_CFG_GRPSS_XBAR_ASYNC_MODE);
}
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